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252420200 = 23521262101
BaseRepresentation
bin11110000101110…
…10000001101000
3122120222021102022
433002322001220
51004104421300
641014124012
76153351644
oct1702720150
9576867368
10252420200
1111a53703a
1270650608
13403ac186
1425749c24
1517261285
hexf0ba068

252420200 has 24 divisors (see below), whose sum is σ = 586877430. Its totient is φ = 100968000.

The previous prime is 252420173. The next prime is 252420209. The reversal of 252420200 is 2024252.

It can be written as a sum of positive squares in 3 ways, for example, as 168844036 + 83576164 = 12994^2 + 9142^2 .

It is not an unprimeable number, because it can be changed into a prime (252420209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 630851 + ... + 631250.

Almost surely, 2252420200 is an apocalyptic number.

252420200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252420200 is an abundant number, since it is smaller than the sum of its proper divisors (334457230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252420200 is a wasteful number, since it uses less digits than its factorization.

252420200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262117 (or 1262108 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 252420200 is about 15887.7374097132. The cubic root of 252420200 is about 631.9868407771.

Adding to 252420200 its reverse (2024252), we get a palindrome (254444452).

The spelling of 252420200 in words is "two hundred fifty-two million, four hundred twenty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 1262101 2524202 5048404 6310505 10096808 12621010 25242020 31552525 50484040 63105050 126210100 252420200